28027651 has 8 divisors (see below), whose sum is σ = 28698624. Its totient is φ = 27359880.

The previous prime is 28027621. The next prime is 28027697. The reversal of 28027651 is 15672082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28027651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28027621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32046 + ... + 32908.

It is an arithmetic number, because the mean of its divisors is an integer number (3587328).

Almost surely, 2^28027651 is an apocalyptic number.

28027651 is a deficient number, since it is larger than the sum of its proper divisors (670973).

28027651 is an equidigital number, since it uses as much as digits as its factorization.

28027651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 28027651 is about 5294.1147513064. The cubic root of 28027651 is about 303.7588223036.

The spelling of 28027651 in words is "twenty-eight million, twenty-seven thousand, six hundred fifty-one".